Google Play Movies
E1
The Case of the Radiant Wine
Where to watch
Seasons & Episodes
E2
Main Course - Murder
E3
A Sudden Stillness
E4
Final Performance
E5
The Case Of The Elder
E6
The Curse Of The Gypsy
E7
Gina, Gina
E8
The Parasite
E9
The Red Death
Cast
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2004 · 7.9
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1999 · 8.5
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2016 · 8.6
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2023 · 6.7
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2021 · 6.4
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2014 · 8.0
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Diagnosis: Unknown — streaming FAQ
Which OTT platform streams Diagnosis: Unknown?
Diagnosis: Unknown isn't on any subscription service in United States right now, but you can rent or buy it on Google Play Movies. It's not on Netflix.
Is Diagnosis: Unknown on Netflix?
No, Diagnosis: Unknown is not on Netflix in United States as of August 2026. You can rent or buy it on Google Play Movies.
Is Diagnosis: Unknown on Amazon Prime Video?
No, Diagnosis: Unknown isn't on Amazon Prime Video in United States right now.
Where can I watch Diagnosis: Unknown for free?
Diagnosis: Unknown is available to stream free (with ads) on Tubi TV in United States.
How many seasons are in Diagnosis: Unknown?
Diagnosis: Unknown has 1 season in total (9 episodes). The series concluded in 1960.
Are all episodes of Diagnosis: Unknown out yet?
Yes — all 9 episodes across 1 season of Diagnosis: Unknown are out and available to stream.
Is there a Season 2 of Diagnosis: Unknown?
No — Diagnosis: Unknown ended after 1 season, so there is no Season 2.